Semiconductor device manufacturing: process – Coating with electrically or thermally conductive material – To form ohmic contact to semiconductive material
Patent
1997-12-31
1999-12-14
Picardat, Kevin M.
Semiconductor device manufacturing: process
Coating with electrically or thermally conductive material
To form ohmic contact to semiconductive material
438612, 438111, H01L 2144
Patent
active
060017252
ABSTRACT:
A method and apparatus for connecting a lead of a lead frame to a contact pad of a semiconductor chip using a laser or other energy beam is herein disclosed. The lead may be wire bonded to the contact pad by heating the ends of a wire until the wire fuses to the contact pad and lead or an energy-fusible, electrically-conductive material may be used to bond the ends of the wire to the contact pad and lead. In addition, this invention has utility for both conventional lead frame/semiconductor chip configurations and lead-over-chip configurations. In addition, with a lead-over-chip configuration, the lead may be directly bonded to the contact pad with a conductive material disposed between the lead and the contact pad.
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Micro)n Technology, Inc.
Picardat Kevin M.
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